Was your first orgasm from masturbation? If so, what was your masturbation fantasy?

Some of us were lucky enough to have a partner involved in our first orgasm. Many (possibly most?) of us, including myself, had our first orgasm while masturbating. I'm curious to know what your masturbation fantasy was, that got you over the edge that first life-changing time. For myself, (a male), I would have been 14 or 15, I was lying on my tummy, rubbing my erect penis against the tightly-stretched sheets, fantasizing that two of my favourite female classmates were behind me, taking turns squeezing bulbs of warm oil into my anus... rhythmically... my ass would come up to meet them, then I'd slide down, then up for the next bulb... (Until one time I slid down and everything exploded and I tasted iron in my mouth.) The fantasy didn't include any details about how this situation came about. But I somehow felt it wasn't by mutual consent.. They had decided to do this to me for reasons of their own, and I was helpless to resist. Me submitting to them was a powerful and important part of the fantasy.